CiviCRM API - Adding Custom Values to Case Get

Getting entities filtered by the value of custom field is only available for Contacts. Below is a deconstruction of the get API function for Contacts. Hopefully it'll show where the custom field magic happens.

Each method gets a section (with the file it is in parenthesis) which contains a list of the functions that it calls. Hopefully I'll add some explanations of the processes that occurs in each later on.

civicrm_api3_contact_get (api/v2/Contact.php)

The API function.

1. _civicrm_api3_contact_get_supportanomalies (api/v3/Contact.php)
2. _civicrm_api3_get_using_query_object (api\v3\utils.php)
3. civicrm_api3_create_success (api\v3\utils.php)

_civicrm_api3_contact_get_supportanomalies (api/v2/Contact.php)

Changes a few of the parameters around for consistency and convenience.

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_civicrm_api3_get_using_query_object (api\v3\utils.php)

The comment for this function says that it is a general function for more complex get requests that is only used currently for Contacts, but can, and should, be extended for use by other entities. However, there is explicit use of the Contact BAO object in the method, so that aint gonna work is it?

1. _civicrm_api3_get_options_from_params (api\v3\utils.php)
2. civicrm_api($entity, 'getfields', array('version' => 3, 'action' => 'get'));
3. CRM_Contact_BAO_Query::convertFormValues (CRM/Contact/BAO/Query.php)
4. CRM_Core_DAO::createSqlFilter (CRM\Core\DAO.php)
5. CRM_Contact_BAO_Query::apiQuery (CRM/Contact/BAO/Query.php)

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civicrm_api3_create_success (api\v3\utils.php)

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_civicrm_api3_get_options_from_params (api\v3\utils.php)

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CRM_Contact_BAO_Query::convertFormValues (CRM/Contact/BAO/Query.php)

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CRM_Core_DAO::createSqlFilter (CRM\Core\DAO.php)

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